That is why ClearType technology was invented. It makes your text much more clear. For classic LCD with RGB pixels oriented in vertical direction it increases DPI 3×. So it can use one-third of the pixel instead of the whole pixel to render text so text can have smaller details which good for already small text.
Right after I installed 2020, my impression was that something changed the way my fonts look. I didn't like the change or find it more readable. Kinda used to it now and not sure anymore if it was doing so everywhere. I guess in that case it changed something in ClearType that I shouldn't turn back?